Patent · US Active

Process for producing low-monomer-content organic polyisocyanates

US8293937B2 · kind B2 · utility

0Cited by

5References

7Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Martin Brahm · Siegen, DE
Frank Richter · Frankfurt, DE
Thomas Voigt · Export, US
Reinhard Halpaap · Odenthal, DE

Key dates

Filing date	Dec 15, 2008
Grant date	Oct 23, 2012
Priority date	—
Expiry date	Jun 24, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/022
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a new industrial process for producing low-monomer-content organic polyisocyanates by oligomerization of organic diisocyanates in a two-phase system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.